Definitions of eddy:

• noun:   a miniature whirlpool or whirlwind resulting when the current of a fluid doubles back on itself
• noun:   founder of Christian Science in 1866 (1821-1910)
• verb:   flow in a circular current, of liquids
• name:  A male given name (rare: 1 in 10000 males; popularity rank in the U.S.: #676)
• name:  A surname (common: 1 in 14285 families; popularity rank in the U.S.: #1718)